DEVICE FOR REMOVING NITROGEN

PURPOSE:To provide a denitrification device having high speeds as a whole by positively accelerating reduction reaction from nitrogen in a nitric acid to nitrogen in a nitrous acid by means of bacteria and rapidly reducing the nitrogen in a nitrous acid state produced to nitrogen gas by means of hyd...

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Hauptverfasser: TSUNODA FUDEKO, AKEGA HARUKI
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creator TSUNODA FUDEKO
AKEGA HARUKI
description PURPOSE:To provide a denitrification device having high speeds as a whole by positively accelerating reduction reaction from nitrogen in a nitric acid to nitrogen in a nitrous acid by means of bacteria and rapidly reducing the nitrogen in a nitrous acid state produced to nitrogen gas by means of hydrogenation catalyst. CONSTITUTION:In a denitrification device for raw water containing nitrogen in a nitric acid state, nitrogen in a nitrous acid state is produced positively by means of a biological denitrification means, and a chemical denitrification means including hydrogenation catalyst for reducing nitrogen in a nitrous acid state to nitrogen is provided in a following stage.
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subjects CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title DEVICE FOR REMOVING NITROGEN
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